Just came across this. I’m getting one for my friend who is working on his new house. Just be careful when you use it though. The magnet could demagnetize your credit card and stuff. Regular price is $9.99. $5.99 AC.
https://www.amazon.com/dp/B01IEZDW20
Coupon code: RQ4IU4WK
Ships free with Amazon Prime or orders of $25 or more.