Thumbstrap kit:

Black or Green Leather (cut and skived) with fabric and felt, £6.00 per pair.

Brackets, Lachenal, Wheatone or blank £4.00 per pair.

Loops £2.00 per pair

Instruction DVD, Showing how to make thumbstraps, fit bellows and thumb strap screw  inserts. (Free with bellows) - £1.50