PUMP HOOKS XT: Fits shorter handle dumbbells 

Compatible WITH Nuobells, Core Home Fitness, Nordic Track Adjustable Dumbbells

Compatible WITH Powerblock Elite USA and Elite EXP models on the top outer rail.  Works for any exercise including Weighted Dips, Pull-Ups, Belt Squats

Material: Solid steel with rubber dip molding 

Comes with: 2 Pump Hooks XT

Dimensions: 

Outer Width: 4.45"

Inner Width: 3.6"

Hook Width: 39mm/1.53"

Thickness: .2"

Weight: Each Pump Hook weighs under a pound

PATENT PENDING.