"What if the leash doesn't retract smoothly after assembly?"
→ This is not a defect. In that case, the straps are not optimally seated. Reposition them once, then the retraction will run freely.

"Does the halter slip on the Flexi?"
→ Only if the ring is not correctly positioned. When correctly positioned, the halter remains stable – set it once, then no further adjustment is needed.

"Is the product complicated to attach?"
→ It's not click-on accessory. Assembly takes about 60 seconds. With the short video, it's immediately understandable and easily doable.