Size:

#1: lock 18mm x 11mm x 1mm, key 22mm x 7mm x 1mm, jump ring hole 3mm

#2: bow length 20mm, width 4mm, arrow length 17mm, width 5mm, jump ring hole 3mm

#3: lock 11mm x 8mm x 3mm, key 20mm x 5mm x 2mm, jump ring hole 3mm

Note: The size and weight are measured manually, so there will be some indirect measurement errors.