Ownsig Golf Ball Marker Pitch Mark Green Divot Repair Switchblade Hand Tool Golfer Kit Sporting Goods Groove Cleaner And Club Rest. Ball marker attaches to tool magnetically. Prongs snap into action at the push of a button. Locks open and closed. Size7cm x 3.2cm x 1.3cm - 2.76inch x 1.26inch x 0.51inch.