SparkFun Electronics Comments urn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f8249 2020-01-19T09:33:20-07:00 SparkFun Electronics Dirf on COM-09337 - Concave Button - Blue Dirf urn:uuid:18f6503f-a4ff-8626-9728-3317b0a5fb66 2011-04-13T14:46:22-06:00 <p>While these guys are a bit more expensive then the 33mm convex ones sold here, they're actually a pretty good deal when you consider the fact that the microswitch included with them is over 3/4 the price. You're only paying $0.45 more for the nifty arcade button.</p>