Manufactured from injection moulded plastic.

Heavy duty base has four recessed 6mm screw holes.

Upper frame is secured to base via nylon bolts.

Dimensions:

Small
Overall Size: 323 x 189mm.
Max. Battery Base: 300 x 170mm.
Max. Battery Height: 210mm.
Min. Battery Height: 165mm.

Large
Overall Size: 362 x 189mm.
Max. Battery Base: 300 x 170mm.
Max. Battery Height: 210mm.
Min. Battery Height: 165mm.