Specifications and performance indicators:
Round Circular: diameter25 x 1mm, diameter30 x 1.5mm, diameter32 x 1.5mm
Square Square: 27 x 27 x 1.5mm, 29 x 29 x 1.5mm, 32 x 32 x 1.5mm
Drum Drum-type: 29 x 14 x 1.5mm, 32 x 14 x 1.5mm
Rectangular Rectangular: 23 x 38 x 1.5mm
Can supply based on your requirement or prototype.