Excellent condition. 1/4” thread on top, with 3/8” (and 1/4” insert) for attaching to tripod; built-in spirit level; engraved 360° scale with 10° divisions; fits most ball and socket heads and b/c of its flat and stable design, it can be mounted between tripod and ball head or between ball head and camera. Easy to attach an arca-swiss type clamp on top if needed. asking $90 Price includes shipping for USPS to USA Any Q’s just PM me. Thanks for looking.