Retractor Set General Operating Double End 8.5 & 8.75inch Blades Unit quantity per set: 2 End type: double Special features: overall length; one 8-1/2 in. (21.59 cm),and other 8-3/4 in. (22.23 cm) Material: steel, corrosion resisting Iii part name assigned by controlling agency: retractor set general operating double end 8.5 & 8.75" blades technical-characteristics