Package Included: 1 * Ring Sizer with 27 circle models+1* Ring Mandrel Size:1-13(US size) A-Z(UK sizer) Material: This US ring mandrel sizer guage is made by durable plastic fine workmanship and high quality Ring size increments are clearly marked on each ring which is easy to read and measure precisely /correctly, Ring sizer set can be rotated and disassembled Compact size, easy to get the right size number This Ring sizer with half sizes, ( "-" Means 1/2 size. "-6" is 6.5, "-7" is 7.5, "-8" is 8.5 etc), and no quarter sizes,ring sizer mandrelwith US sizes of 2-15 and UK sizes of A-Z, Plastic Application: This purple ring sizer guage is widely use for measuring wedding ring, class ring and many other occassions