1.5" diameter rubber ball and hardware for attaching to the back of the RAM-HOL-UN7U universal X-Grip cradle.Ball Adapter - C SizeSKU: HH00641NZ$19.99価格消費税抜き数量*カートに追加する今すぐ購入TechnicalHARDWARE INCLUDED(1) #10-24 x 3" Machine Screw (1) #10-24 Nylock NutBALL SIZEC Size (1.5")WEIGHT CAPACITYStandard Use: 4 lbs Heavy-Duty Use: 3 lbsMATERIALSHigh strength composite