new. glass cup (ID): .15*19.7mm.Stubby lens: .2.4 mm Easy to and use.Durable and practical.Widely used along with Fortuneweld brand precision welder PCW220.Fits all -9/20/25 series air cooled welding torches. Advantage for transparent cup: It gives welders an extrodinary visibility and comfortable during the welding job.Especially designed to helps to weld precision and job where it requires to see the location clearly. Helps to make uniform flow for welding which can help welding quality to to high.It can also help to save at least 30% comparing to common ceramic cup. They are widely compatible with original common spare parts of TIG torch. In this case, A) as to 10 transparent cup for torch WP9/20/25/24, you need to buy one extra O ring to complete the whole spare parts on the of original other spare parts. B) as to 12 big or small transparent cup for torch WP17/26/18, you need to buy one extra O ring to complete the whole spare parts on the of original other spare parts. It has than other ceramic type cup because there is no too much Press with heat. Color: green + yellow Material: plastic + metal + glass Package Included: 1x 12 glass cup 1x 45Vxx collets body lens for tig welding torch 1x 13Nxx collet for tig welding torch 4x o-rings Note: avoid to use all kinds of transparent cup where there are spatter during welding job. do not knock on the transparent cup even if it can bear high temperature. keep it in mind that all kinds of transparent cup needs to be used according the welding range. For DC output welding, the maximum current is 170 A. For AC output welding,the maximum current is 90A. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.