Monster Ball Style Loose-lining Marker Large 2.5cm and 1.5cm diameter each, 1 The 1.5cm and 2.5cm diameters are large, suitable for use when adding heavier nymphs or shot. The leader is inserted into the slit in the screw part and fixed with the screw. This marker is easy to use because through-hole types and tape-attached types are difficult to remove once attached. Buoyancy can be adjusted by using a combination of large and small sizes (this is only possible with different colors). Rubber ring included. Easy to attach and detach. Can be used in two-tone colors.