uxcell Digital Finger Ring Hand Held Tally Knitting Row Counter Green Case Size: 3.5 x 2.8 x 1.3cm/1.3" x 1.1" x 0.5"(L*W*H); Band Size: 10.5 x 1.5cm/4.1" x 0.6"(L*W) Product Name: Finger Counter; Material: Plastic Power by: 1 x L113 Button Cell(Here not Included); Fit Finger Girth: 5-9cm/ 2"-3.5" Case Color: Green; Band Color: Clear Weight: 14g; Package Content: 1 x Finger Counter