Check the listing for details. Light System Clamp. Color: Black, Condition: Used. Listed at 21.98 USD. Very nice clamp for a light system. There is no name no number. But it is a sweet clamp. Comes in a bag and works well. The clamp spot closed is 3/4 inches. The other part that holds square, round, hexagon, octagon any kind of thing wide-open measures one and a half inches. Payment is due within 3 days of auction end. Shipment will be made within 1 business day of confirmed payment, usually by USPS or FEDEX. Shipping for this item will be calculated based on winning bidder‘s location. Packaging is done very carefully using generous amounts of packing peanuts and bubble wrap. Returns are accepted within 30 days, seller pays return shipping fees. In the event you have any issues with your purchase, please contact us immediately before opening a case with eBay. We welcome the opportunity to rectify any inadvertent errors or misunderstandings. International bidders, please inquire about shipping costs to your location before bidding. Because of recent difficulties with deliveries in several countries we only use USPS Priority International for international shipping. km 3/17/23