Sirui TY-LP70 Arca-Type Quick Release Plate Sirui TY-LP70 Arca-Type Quick Release Plate - Tightening Hex Key - Sirui 6 Year Warranty Mounting Stud: 1/4"-20 Construction: Forged Aluminum Dimensions: 3.54 x 2.70 x 0.43" / 90 x 69 x 11mm Weight: 2.9oz / 83g