1Made of premium aluminium alloy, sturdy and durable for long time. Lightweight and portable, useful accessory for photography lovers 2With a 1/4'' and 3/8'' screws on the top and a 1/4'' and 3/8'' screw holes on the bottom, compatible with most cameras and tripods 3Anti-slip pads are made of good rubber, can give you reliable mounting camera and reduce abrasion when moving camera body 4With 2 built-in bubble levels, can help you quickly find the balance and ensure the precise shooting angle 5The knob can help you quickly get the camera with the base mount quickly from the quick release plate within seconds, convenient to useFeatures:Made of premium aluminium alloy, sturdy and durable for long time. Lightweight and portable, useful accessory forphotography lovers. With a 1/4'' and 3/8'' screws on the top and a 1/4'' and 3/8'' screw holes on the bottom, compatible with most camerasand tripods. Anti-slip pads are made of good rubber, can give you reliable mounting camera and reduce abrasion when movingcamera body. With 2 built-in bubble levels, can help you quickly find the balance and ensure the precise shooting angle. The knob can help you quickly get the camera with the base mount quickly from the quick release plate within seconds,convenient to use. Specification:Material: Aluminium alloyColor: BlackScrew: 1/4'' & 3/8''Screw Hole: 1/4'' & 3/8''Size: Approx. 9 x 8 x 1.7 cm / 3.54 x 3.15 x 0.67 inchWeight: Approx. 277gSuitable for Manfrotto 577, 501PL and 501PL (long)Package Included:1 x Quick Release PlateCamera and other devices are not included.