Sea anchor
Modern commercial sea anchors are usually made of cloth, shaped like a parachute or cone, and rigged so that the wider end leads and the narrower end trails. When deployed, this type of sea anchor floats just under the surface, and the water moving past the sea anchor keeps it filled. Some varieties are cylindrical, with an adjustable opening in the rear that allows the amount of braking to be adjusted when deployed.
Anchor windlass
NOTE: Anchor cable is not the same as anchor chain (see above). Cable is a heavy rope made by laying up three ordinary ropes which have themselves been made by laying up three strands. Whereas in ordinary rope, known as hawser laid rope, the three strands are laid up from left to right, in cable-laid rope the three hawser ropes must be laid up from right to left.