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SAKER BM via Amazon [amazon.com] has 3-in-1 Saker Silicone Caulking Tool (Grout Removal, Sealant Finishing & Scraper) on sale for $3.99 when you apply promo code 6KOEETP3 at checkout. Shipping is free with Prime or on $35+ orders.

Note: Product page(s) may say Prime Exclusive, but when you apply promo code at checkout, final price will be same for Prime/non-Prime.