This Heavy Duty Rubber Swing Seat with Chains is ideal for Play Grounds as well as garden play garden swing sets. Its alot strong that the standard garden swing seats with ropes.
This will suit a swing beam height of 2.5m high. 
Easy to adjust the height using the D style shackle provided.
Reinforced Seat with aluminum insert.
Seat Size 448mm x 178mm x 26mm
Chain Length 1.8m / 2m