Listing is for a Kit of twenty-four (24), four (4) sets of Six (6), New Blue Bolt Caps. Kit contains four sets of Six Anodized Bolt Head Covers/Caps-Set A: Six Covers that Fit 7/16" & 10mm & 11mm Bolt Heads-Set B: Six Covers that Fit 1/2" & 12mm & 13mm Bolt Heads-Set C: Six Covers that Fit 9/16" & 14mm & 15mm Bolt Heads-Set D: Six Covers that Fit 5/8" & 16mm & 17mm & 18mm Bolt Heads- 48 x round double sided tape for loose fitting bolts. These Bolt Caps look great on your engine. You can see the bolts on my engine in the images above. Silicone adhesive works well for securing caps to bolts. WE SHIP WORLDWIDE!!!