According to my DB the lowest price is 13.99 USD for 2Pcs Workbench Dog Hole Clamp Set With Anti-Slip Pad (in Banggood). Just check coupons out (with price alert and history). Best price?
Latest price update (UTC time):
Banggood (13.99 USD)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. The question is – is it a good price? Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever.
Link: Banggood product page
Price: 13.99 USD
13.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGWDT15
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for 2Pcs Workbench Dog Hole Clamp Set With Anti-Slip Pad.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).