Description Professional:Designed for golfers of all types. The bubble level will train your eye to see the that can make even a short putt difficult. More use, the better your putting game will be. Convenient:Using magnet, easy to stick on and off, attachable on hat, belt shoes with the clip equipped. Accessibility:The built-in bubble level on the marker shows you the slope incline on the green to help with your read. Universal:Made for golfers, amateurs, and :The bubble shell is made of plastic. Colour:blue Material:Plastic + magnet Size: 1.6 x 2.5cm Package Contents: 2 x spirit level cap clip Only the above package content, other products are not included. Note: Light reflection 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.