Unique to the market, our OBD Custom Reel & Roller Hook Adapter has to be the most innovative combination of reel and hook setup available. A perfect solution for anyone with wooden, flat, roller or invert spearguns chasing a feauture-filled, compact, high performance reel.. The OBD Custom Reel aims for the most ultra light-weight construction possible in a speargun reel. It incorporates a broad, long, flat reel base, for fitting directly, simply and easily onto any flat surfaced or wooden speargun. There is also an option to add a double roller hook adapter - in a choice of flat, or cup-shaped mount to fit tube spearguns. This stand-off method of mounting a reel minimises the busy-ness often found under roller and invert reeled spearguns. This is the only reel in the marketplace that features a unique adjustable clutch that can be finely calibrated according to the user's needs. Frame is made from acetal resin - Delrin - a light polymer of excellent mechanical strength, self-lubricating and does not suffer from the contact with water, exposure to sun or salt. These reels are extremely durable because the plastic material, electrically inert, can join the aluminum shaft with no problems of galvanic corrosion. Spool is also made from lightweight but extremely tough Delrin material. Easy grip knurled clutch knob and retreival knob. Features a curved and knurled spinning rear over-spool arm precisely positioned to guide and mainatain balanced spool operation. Available in 2 spool sizes - 80mm and 100mm Fantastic European quality reel. Size & Capacity: 80mm Diameter = 45mm height holds 50m x 1.8mm or 60m x 1.5mm 100mm Diameter = 45mm height holds 80m x 1.8mm or 90m x 1.5mm