Color: Black, Size: 21mm – Black ring magnetic ring
500 in stock
This product has internal longitude of 18mm(small size) 19mm(medium size) 20mm(large size) 21mm(extra large size)
The width of the ordinary model is about 7mm, the width of the mini model is about 4mm and the wall thickness is about 2mm
All good magnetic goods are easy to break, remember not to break!
|specifications||The inner diameter/mm||The perimeter/mm|