#12453:
Diameter 9/32" (7mm). Overall length 2 7/8" (70mm). Eye size 7mm. Snap opening 13mm. Load permitted without engagement 396 lbs (180 kg).
#12455:
Diameter 3/8" (9mm). Overall length 3 5/8" (90mm). Eye size 9 mm. Snap opening 18mm. Load permitted without engagement. 550 lbs (250 kg).