It has a solid bulge on the top, but the total stroke is very short, only 3.0 mm, providing a full tactile experience throughout the keystroke process Fast trigger, reduced axis shake More stable, fast trigger Strong rebound, more comfortable feel Made of high-quality materials Type: Paragraph shaft Spring length: 21mm Trigger pressure: 305gf Paragraph pressure: 555gf Bottoming pressure: 50gf Max Total stroke: 3.00mm Conduction stroke: 2.000.6mm Paragraph starting point: 0.5mm The product appearance and printed words depending on the batch, but this does not affect use Colour:As Shown Material:POM+PC Package Contents: 45 x Keyboard Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.