The spring action clip is designed to fit around the palm of the hand. The opening measures 1.5 inches high and about 4 inches long. It could possibly be bent to accommodate a small stump. Consider the AEH100A EazyHold Grip Straps https://www.thewrightstuff.com/eazyhold-grip-straps-adult-5-pack.html silicone straps that can fit a variety of items and stretch to fit around an upper extremity.