This ankle strap is designed to attach to dumbbells for resistance training during leg exercises.
Dumbbell Foot Attachment, Ankle Strap for Dumbbell, Hamstring Curl, Foot Weights
Dumbbell Foot Attachment – Dumbbell Foot Strap & Ankle Weight System for T
Fly Bamboo Ankle Strap for Dumbbell Foot Attachment - Adjustable Ankle Weights