Superb quality 316 stainless steel axle rod 5mm diameter with M3 internal thread, plus 2 screws and 2 washers. Choose a length to suit your speargun head. Perfect for using in your wooden speargun build or roller speargun conversion. Smaller...

Price is for single Invert Pulley with a single acetyl bearing. These pulleys are the heart of the Roisub System, made by special dedicated machines in a controlled environment. Roisub delrin pulleys are regarded as the best in the market...

Price is for a pair of Ermes roller wheels. Each wheel is fitted with two stainless steel micro bearings with high rust resistance characteristics, greater than static load and dynamic sealing. Wheels are machined from solid Delrin. The particular shape...

Price is for a single roller bearing to fit a Seatec Roller Head. To be used as a spare part for a Seatec Roller Speargun or Seatec Roller Head. Non-corroding acetal/ nylon bearing. Fits 5mm axle. To be used with...