Hardwood slats treated with sadolin and fixed to steel galvanised framework with aluminium pop rivets. Liners are made from zinc coated steel, phosphated and powder coated green and can be either open top or fitted with a hinged lid. (Please note that lids cannot be retro fitted to the liners). The G120 (4 feet version) can be bolted to the ground if required. The G121 (fitted with a centre leg instead of 4 feet) can be permanently fixed or concreted into the ground, or slid into a ground socket. Ground sockets must be purchased in addition to the bin (if required).