3657 is a standard, replacement quick release plate for PM XC-M 522 & XC-M 525 tripod kits as well as XC-MH26 and XC-M30 ball heads. It uses a dovetail design (arca-type) which is also compatible with a huge number of heads, gimbals, and other accessories from Master as well as other manufacturers.
This Quick Release plate is precision machined using high-grade aluminum and it has a soft, grippy, anti-twist pad around its entire top surface. An integrated strap slot works with a variety of shoulder straps and hand grips. Two safety bolts are installed in the bottom of the plate to prevent it from accidentally sliding off a head. These bolts are removable if you so choose.
This plate is also available in a variety of other, super-cool colors.
SPECIFICATIONS: Dimensions: 42mm wide x 47mm long x 9 mm thick (not including protrusion from 1/4"-20 threaded mounting bolt) Weight: 1 1/8 oz / 32 grams