Jessica
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Introduction: The Clutter-Free Walk
We have all been there: fumbling with a leash in one hand, a poop bag roll stuffed in a pocket, and training treats crumbling in the other. It’s a juggling act that often ends in frustration. The FLEXI Multi Box promises to solve this logistical nightmare by integrating storage directly into your existing leash handle.
This simple, cylindrical accessory snaps seamlessly into the handle of compatible FLEXI retractable leashes, turning a simple tether into a “Swiss Army Knife” for dog walking. But is it just a plastic gimmick, or a genuinely useful tool? We attached one to our FLEXI New Classic leash to see if it could handle the dual duties of waste management and treat dispensing without being annoying.
Key Features and Compatibility
Before you buy, know this: The Multi Box is only compatible with specific FLEXI models (New Classic, New Comfort, Xtreme, etc.) in sizes S, M, and L. It slides into a pre-molded slot under the handle. If you have an off-brand leash, this will not work.
Dual-Purpose Design
The genius of the Multi Box lies in its simplicity. It is a hollow cylinder with two opening mechanisms:
- Lids on Both Ends: You can open it from the left or right side, making it accessible regardless of which hand holds the leash.
- Rubber Stopper: There is a small rubber plug on the bottom. Remove it, and the box transforms into a poop bag dispenser where you pull bags through the hole. Keep it plugged, and it’s a sealed container for treats or keys.
German Engineering
Like the leashes themselves, this accessory is made in Germany. The plastic feels dense and durable, matching the texture and color of the leash handle perfectly. It doesn’t rattle or feel loose once snapped into place.
Hands-On Experience: The “Shake” Test
We tested the Multi Box in two configurations: as a poop bag holder and as a treat container.
As a Poop Bag Dispenser
This is its primary function for most users. A standard roll of bags fits inside perfectly. We removed the bottom rubber plug and fed the first bag through. The friction is just right—bags pull out easily but don’t unspool on their own. The best part? no dangling plastic bone holder banging against your hand with every step. It feels like part of the leash.
As a Treat Holder
We swapped the bags for a handful of kibble and training treats. With the bottom plug securely in place, the box is surprisingly spacious. The side lids snap shut firmly. We shook the leash vigorously to simulate a run or sudden stop—the lids stayed closed, and no treats spilled. However, accessing treats mid-walk requires two hands (one to hold the leash, one to open the lid), which takes a bit of practice.
Ergonomics
Does it make the leash heavy? Not really. It adds negligible weight and sits flush under the handle, so it doesn’t interfere with your grip or the retraction mechanism. It actually improves the balance of the handle slightly.
Pros and Cons
Is this accessory worth the add-on cost? Here is our breakdown.
| Pros (The Good) | Cons (The Bad) |
|---|---|
| Streamlined: Eliminates dangling bag holders. | Proprietary Fit: Only fits specific FLEXI leash models. |
| Versatile: Works for bags OR treats (not both at once). | Plug Risk: The tiny rubber plug is easy to lose if removed. |
| Ambidextrous: Opens from both sides for left/right use. | Capacity: Can’t hold a full roll AND treats simultaneously. |
| Silent: No annoying plastic rattling while walking. | Lid Stiffness: Lids can be stiff to open initially. |
| Durable: High-quality plastic matches the leash. |
Product Comparison
How does the Multi Box compare to standard solutions?
| Feature | FLEXI Multi Box (Our Pick) | Clip-On Bone Dispenser | Training Pouch |
|---|---|---|---|
| Attachment | 🔗 Integrated Slot | 🪝 Carabiner Clip | 👖 Belt Clip |
| Stability | ✅ Rigid (No Swing) | ❌ Swings/Bangs | ✅ Body Mounted |
| Versatility | 🍬 Treats OR Bags | 💩 Bags Only | 🍬 Treats & Bags |
| Aesthetics | ✨ Seamless Look | 🦴 Bulky/Cheap | 🎒 Utilitarian |
| Price Tier | 💰 Affordable Add-on | 💰 Cheap | 💰 Mid-Range |
Final Verdict
The FLEXI Multi Box is a “no-brainer” upgrade if you already own a compatible FLEXI leash. It completely solves the annoyance of dangling poop bag holders swinging around and hitting your knuckles. It creates a sleek, integrated system that makes walks feel more organized.
We recommend buying two: one for poop bags and one for treats, swapping them out depending on the type of walk you are taking. Just be careful with that tiny rubber bottom plug—put it in a safe place immediately if you are using the box for bags, or it will disappear.
