Check the listing for details. 3pcs Automatic Center Punch Locator Adjustable Spring Loaded Window Breaker Tool. Condition: New. Listed at 8.81 USD. Features:100% brand new and high qualityHigh-carbon steel treatment to prevent slipping.The mark will prevent sliding before drilling.Automatically load the spring, and then forcefully release the ring to the center punch (no need for a hammer).The spring pressure can be adjusted by simple rotation to adjust the knurling.Automatically designed clean and accurate boxing wood and plastic Specifications:Material: carbon steel + alloy steelColor: black + silverLength: about 130 mm Package Contents :1*Center punch2*Spare punch Tip Note:Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!