Set includes:
* 1 x 7.7mm dia 10 tooth push fit-2mm centre
* 1 x 9mm dia 14 tooth push fit-4mm centre
* 1 x 14mm dia 20 tooth push fit-4mm centre
* 1 x 20mm dia 30 tooth push fit-4mm centre
* 1 x 27mm dia 40 tooth push fit-4mm centre
* 1 x 33mm dia 50 tooth push fit-4mm centre
* 1 x 40mm dia 60 tooth push fit-4mm centre
* 1 x 46mm dia 70 tooth push fit-4mm centre
* 2 x 125mm interlocking toothed rack
* 1 x worm
* 1 x spur.