Rectangular mounting plate for quick release system. Supplied with 3/8" camera screw.Compatible with:3030 Pan Tilt Head with Quick Release Plate3030G Green Pan Tilt Head with Quick Release Plate3130 Quick Release Micro Fluid Head3130G Green Quick Release Micro Fluid Head3160 XL Fluid Head3229 Swivel Tilt Head with Quick Release3262QR Midi Ball Head with Quick Release Plate3265 Grip Action Ball Head with Quick Release Plate3265G Green Grip Action Ball Head with Quick Release Plate3299 Compact Quick Release Adapter with Plate3405 Junior Tripod with Integral QR Head3405B Junior Tripod with Integral QR Head (Black)3407 Junior Pan Tilt Head3413QR Proball 308 with Quick Release Plate3435QR Proball 468 with Quick Release Plate3437 3D Magnesium Head