How much does this cost to the nearest dollar?

WHIRLWIND USA KSP inch Standard Twin Tuck Point Blade Sintered Diffusion Bonded Dry or Wet Cutting for Mortar and Concrete (KSP 4.5 inch)
Craftsmanship Sintered diffusion bonded. Use Twin Tuck Point Blade provide less friction for fast cutting,for an aggressive performance.Can be used wet or dry. Size 4.5 x0.250 x0.395 5/8 Heigh 10mm Application Mortar | Masonry | Concrete Fast Shipping Factory direct shipment Manufacturer WHIRLWIND USA INC, Part WHIRLWIND KST, Weight 10.4 ounces, Dimensions 5.39 x 4.69 x 0.28 inches, model number WHIRLWIND KST,

Price is $21.00
Price: $20.99