Enigma XS Aluminium Standard Enigma XS Aluminium Standard is a wheelchair instant an array of added features with a value-for-money price tag which will be hard to beat. Lightweight aluminium frame in metallic blue or red. Key Elements: - Elite of 24 self-propel or 12½ transit wheel, both with quick release mechanism. - Deep comfort tension adjustable back and seat canvasses. - Comes with deluxe seat and back cushions. - Quick release swing in swing out leg rest with full height and footplate angle adjustment. - Flip back and removable armrests. - Solid tyres. - Half folding back mechanism. - Height adjustable anti-tip wheels. - Adjustable rear wheel position. - Weighs just 8.3kg / 18lb in carry format.