Diem floating protecta sling all carp anglers know that caring for your catch is imperative indeed most good fisheries insist on the use of an unhooking mat this diem floating protecta sling is just the job big enough to protect any carp youre likely to catch it features a hard wearing yet soft cover plus supporting polystyrene balls in the middle and outer wall diem floating protecta sling large mat that offers all round support protection high density foam centre panel