505-Colt  
Width 1/2" (~1.3cm)   Length 1-9/16" (~3.9cm) Thickness(at the bottom)  3/32"(~2.4mm)
Designed for the newborn to up to 70 lbs.
This hinge allows you to put the minimum necessary on your patient while still performing the function needed.
With permanently fastened "super pin"
GA-00 alingment tool available