Sport Type: Diving This is a listing for 4kg of diving weights. 1kg and 2kg weights can be combined. The number of weights can also be adjusted to your preference. We have a large stock of both 1kg and 2kg weights. 《Weight Size》 1kg: Approximately 75mm (length) x 85mm (width) Groove width: Approximately 55mm, Thickness: Approximately 20mm