Free Express Shipping! Kondor Blue 501 Adjustable Baseplate (Arca QR, Raven Black) Locking Height-Adjustable Plate, 17mm of Adjustment Range, ARRI-Type Dovetail Clamp, Captive M4 Ratchet Knobs, 3/8"-16 & 1/4"-20 Helicoil Mount Holes