Size 18mm, it's 0.6x18x2mm Or 0.7x18x2mm;
Size 21mm, it's 0.7x21x2mm;
Size 25mm, it's 0.6x25x2mm Or 0.7x25x2mm;
Size 30mm, it's 0.7x30x2mm;
Size 35mm, it's 0.7x35x2mm;
Size 40mm, it's 0.7x40x2mm;
Size 50mm, it's 0.7x50x2mm.