2Pcs Finger Strengthener, 6 Resistant Level Finger Exerciser, Hand Grip Strengthener, Adjustable Finger Exerciser, Finger Grip Strengthener, Hand Strengthener Grip For Strength Training (Grayblack)Specification: Product Name: Finger Exerciser Material: Silicone Resistant level: 66LB, 88LB, 11LB, 13LB, 17LB, 21LB color: blackgray Packing List: Finge..