uxcell 1/4-inch Hex Shank 5.5mm Socket Nut Driver Setter Adapter Gray 5 Pcs Main Material: Metal; Package Content: 5 x Hex Socket Nuts Product Name: Hex Socket Nut; Weight: 139g Main Color: Gray; Overall Size: 66 x 11mm / 2.6" x 0.4" (L*Max.D) Hex Socket Size: 5.5mm / 1/4"; Hex Shank Size: 6.3mm / 1/4" Battery Included: No