One of our most popular athletic equipment cases — the SideLine trunk is the perfect size for bulky gear. The optional trays and helmet compartment keep smaller items organized. Like all Wilson athletic equipment trunks, the SideLine is laminated inside and out. And our new super heavy duty Phenolic casters are 2" wide by 4" tall for easy rolling on rough terrain. This heavy duty athletic case comes standard with phenolic casters. These casters are great for hard surfaces and each have a 700 pound rating. For easy rolling on fields - upgrade to our Turf Tires.