Amazon.com : PM501 Manfrotto Type Quick Release Plate with Arca Swiss Type Clamp Built in Compatible with 501PL / RC3 / RC5 / NG Heads Features ProMediaGear Strap Port, for Video Heads
Photography and Cinema · QV-1 Manfrotto 501PL Quick Release Plate
Dodd Camera - SMALLRIG Counterweight Mounting Plate (Manfrotto 501PL) for DJI-R-S
PM501 Manfrotto-Type Quick Release Plate with Arca-Swiss Type Clamp for 501PL / RC3 / RC5 / NG Heads - Walmart.com
SmallRig Counterweight Mounting Plate Manfrotto 501PL for Zhiyun Weebill Lab and Crane2 BSS2277 / SYNTEX.TV
Amazon.com : Manfrotto 501PL Rapid Connect Sliding Plate with 1/4'' and 3/8'' Camera Fixing Screws,Black : Tripod Camera Mounts : Electronics
Amazon.com : Manfrotto 501PLONG Video Long Rapid Connect Mounting Plate,Black : Tripod Camera Mounts : Electronics