Thank you for viewing! (^_^*) This is a listing for magnetic tees. This is a long tee (79mm) product. The tee-up height is approximately 39mm. Similar to Bridgestone's MAGNET TEE, the stake that goes into the ground and the tee cup that holds the ball are connected by a magnet. When impacted, the magnetic connection separates, so there is no resistance from the tee, allowing for a smooth swing, which contributes to improved distance and accuracy ( ´ ▽ ` )ノ Also, the stake and the tee cup are connected by a nylon string, which reduces the chance of the tee flying away! This is a cost-effective product. This tee conforms to golf rules, so it can be used in competitive golf! The quantity can be adjusted depending on the stock, so please let me know in the comments if you wish to purchase more. I also have many other golf goods for sale. If you leave a comment, I can offer a discount and list them as a set, so I hope you will take a look (^_^*) 〓Product List〓 #kuu-shop golf competition driver slice draw distance golf