28.99 USD – that is current price with coupon for Holes Parallel (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood (28.99 USD)
Banggood warehouse is located in China. I have no active coupons for you right now. Is it expensive? From what I can see this price is higher than average price (23.35 USD).
Link: Banggood product page
Price: 28.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG589b2e, BGd2f208, BGf20cdd, BG49bff3, BG20236Tool
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Machifit 2pcs 25x50x75mm Blocks 23 Holes Parallel Clamping Block [EU] (22.99 USD)
Aliexpress
Click here… to search for Machifit 2pcs 25x50x75mm Blocks 23 Holes Parallel Clamping Block on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Machifit 2pcs 25x50x75mm Blocks 23 Holes Parallel Clamping Block.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).