* Specification:<br />(1)PU50:<br />  Professional ball head for camera tripod or slider<br />  Made from black anodized aluminum and has two head locking knobs and one pan locking knob<br />  Arca-Swiss style PU-50 slide-in quick release plate. Universal interchangeable industry standard QR system. Plate dimensions: 1.45 x 2.36 inch (37 x 60 mm)<br />  Independent 360-degree pan control knob makes full or partial horizontal panoramic adjustments easy<br />  Two bubble levels to adjust the degree of head's levels<br />  Ball diameter: 36mm. Base diameter: 55mm. Max load: 15kg. Panning Range: 360 degree with panning scale Accessories type: Ball Head <br />Function: Prevent the camera from accidentally falling off <br />Applicable Camera Brand: Canon・Nikon・Olympus・Panasonic・Pentax・Sony・Universal <br />Material: Aluminum Alloy <br />Product size (L x W x H): 8.70 x 8.50 x 9.50 cm / 3.43 x 3.35 x 3.74 inches <br />Package size (L x W x H): 12.00 x 11.00 x 9.00 cm / 4.72 x 4.33 x 3.54 inches <br />Package Contents: <br />1 x Professional Ball Head with Arca-Swiss Type PU50 Quick Release Plate <br /><br />(2)WH60R:<br />- Double-track sliding-pad・ smooth and fast<br />- The track slider allows you to slide your camcorders・ SLR cameras・ DSLR or DV while shooting video<br />- Camera could shooting from different angle in filming by this slider<br />- Two removable height adjustable feet for ideal shooting height<br />- The mini gradienter helps you find the bala