Notice: 1 set=(60mm 1 piece,80mm 1 piece,100mm 1 piece,120mm 1 piece, 140mm 1 piece)
60mm: inner circle diameter 48mm,rod length 150mm, total length 210mm.
80mm: inner circle diameter 68mm,rod length 150mm, total length 230mm.
100mm: inner circle diameter 88mm,rod length 150mm, total length 250mm.
120mm: inner circle diameter 108mm,rod length 150mm, total length 270mm.
140mm: inner circle diameter 128mm,rod length 150mm, total length 290mm.