The only anchor fits on soft undersea such as sand, gravel, muddy and more. In case it gets rooted, it is recommended to place the retrieval rope in the opposite hole. By pulling the retrieval rope, it can be retrieved in most cases. Weight (approximate): 22.0 lbs (10 kg); Size (H x W x D): 31.9 x 23.6 inches (81 x 60 cm); Bottom hole diameter: 0.9 inches (22 mm); Please be aware that there may be slight differences in design and specifications depending on the time of shipment. There may be small scratches, scuffs, dirt, deformation, logs, uneven sewing, etc. Instruction manual and installation instructions are not included.