Code | Internal diameter (mm) | d(mm) | Weight (g) |
---|---|---|---|
9500000636 | 30 | 157 | 60 |
9500000637 | 40 | 162 | 80 |
9500000638 | 55 | 170 | 90 |
The rings are designed as an under-glass support for laboratory stand
work. They are fitted with a plastic insert and come in three sizes.