This compact pistol grip ball head conveniently mounts optics onto your tripod. Designed for use with spotting scopes, cameras, video cameras and binoculars, this compact and light ball head allows the user to easily aim optics. Squeeze trigger to make quick and easy 3-way adjustments; let go to lock in place. Quick release adaptor makes set-up easy. Works with any standard tripod. Features: - Works with any tripod with a ¼"-20 or ?"-16 threaded center column post. - Squeeze pistol grip to make smooth 3-way adjustments. - Release pistol grip to lock securely in place. - Quick-release plate attaches to optics. Specifications: - Supports up to 6.6 lbs. - Weight: .75 lbs.