Flat Seat with 5.5ft Uncoated Chain Durable Fun, heavy-duty rubber mega flat seat complete, Small Flat Seat with 5 Uncoated Chain Small Uncoated Chain, Black. Check out our heavy-duty rubber mega flat seat complete with 5.5ft 3/16" uncoated chain, amazing for your outdoor playset! This large and comfortable seat will be wonderful for to sit play with, and its high-quality material means it can last. This heavy-duty Rubber Flat Seat is perfect for your playset. Made with commercial grade rubber, it will withstand hours of play. The rubber also provides a grip so that the won’t slip off as they are swinging. Seat is Rubber material. Heavy Duty. Comes complete with 5.5ft uncoated chain, s-hooks and clips. Flat Seat with 5.5ft Uncoated Chain Durable Fun, heavy-duty rubber mega flat seat complete, Small Flat Seat with 5 Uncoated Chain Small Uncoated Chain, Black. Flat Seat with 5.5ft Uncoated Chain Durable Fun, heavy-duty rubber mega flat seat complete, Small Flat Seat with 5 Uncoated Chain Small Uncoated Chain, Black.