the function of this product is second to non. it holds the eye piece perfectly central and grips it tight. i purchased it with the 2 inch diaganal and together they are an expensive (but unbeatable) duo. i wish that you could have the reducer at a better price if you buy both, as most 2 inch diaganals come with a reducer as standard. any way this is great if not abit expensive. its totally metal in construction and will last a lifetime.

Very well made, never owned a ClickLock until recently and can't imagine not using them now. Fantastic grip and so much less fiddly to use and looks very smart too. Can highly recommend these!

Very high quality and fits perfectly in my Baader 2" clicklock Diagonal. The clicklock is smooth and works perfectly for me. It is very well made I think.

Much less fiddly to change eyepieces in the dark with this.