Ring Stretcher in wooden box For the partially sighted_No 4X magnification

4X magnification

Also included is a conoscope to view a gemstone's interference pattern in order to determine its optic character (Uniaxial or biaxial) - but that is for the advanced user

Backlit display can be set to turn on (good in bad light) or to stay off (good for battery-saving) or to stay on for 15 seconds each time you weight an item or press a button

I use this as a 'test' on our exhibition stand - if a customer insists on having the best but can't see the difference between this and a £4

•    Viewing on a phone  / tablet will require a Type-C to Type-C cable (not included)

Ring Stretcher in wooden box For the partially sighted_No 4X magnificationSpecial clearance price while stocks last (once sold, there are no more) Handheld ring stretcher. Works by 'squashing' the ring around the outside as you turn handle. Includes 16 steel discs for ring shanks with thicknesses of between 4mm and 1mm. Yes it works fine but it's hard work compared with the large bench workshop models . However, as a low cost, simple, effective ring sizing machine go for it!