Safety first - No metal springs - Patented stretchbands Patented stretchbands offer superior controlled bounce Product Airzone 12 Price Range £299.99 - £369.99 Weight 150lbs (114kg) Frame Diameter 12' (3.66m) Frame Height 34-1/2" (88cm) Mat Diameter 10'6" (3.23m) Bands Qty 73 Band Dimensions 20 x 1-3/4" (52cm x7 cm) Foam Thickness 1" - 9/16" (2.5cm - 1.4cm) Foam Material polyethylene Box Dimensions 42" x 21-1/2" x 16" Box Dimensions 106cm x 60cm x 41cm Box Weight 150lbs (114kgs) Traditional Springs are the more cost effective option compared with the stretch bands yet still offering a safe trampoline experience. = Product Airzone 12 Price Range £299.99 - £369.99 Weight 138lbs (62.5kg) Frame Diameter 12' (3.66m) Frame Height 37-1/2" (95.25cm) Mat Diameter 10'2" (3.10m) Spring Qty 72 Spring Dimensions 7" x 1.25" (18cm x 3.2cm) Foam Thickness 1" - 9/16" (2.5cm - 1.4cm) Foam Material polyethylene Box Dimensions 43"w x 15.5"h x 21"d Box Dimensions 109cm x 39cm x 53cm Box Weight 138lbs (62.5kgs)