Description: Material: Aluminum alloy Size: UK standard Style: useful and convenient Durable and light weight This grooved ring gauge allows you to precisely measure rings ranging from D to Z+5 (British Sizes from )- an essential tool for jewelers. Specification: D-13.1mm, E-13.5mm,F-13.9mm,G-14.3mm,H-14.7mm,I-15.1mm,J-15.5mm K-15.9mm,L-16.3mm,M-16.7mm,N-17mm.1,O-17.5mm,P-17.9mm,Q-18.3mm, R-18.7mm,S-19.1mm,T-19.5mm,U-19.9mm,V-20.3mm,W-20.7mm,X-21.1mm, Y-21.5mm,Z-21.9mm,Z+1-22.3mm,Z+2-22.7mm,Z+4-21.5mm,Z+5-23.9mm Package Includes: 1 Piece UK Ring Sizer
