This perfect starter plug kit includes 18 different plugs. With 18 different options, we have a plug for almost any application. CERAKOTE's plug kit includes 323 plugs. Whether you just started using CERAKOTE, or you have been for 20 years, this is a kit you need to have! Measurements of the Tapered Plugs: *Small Light Green Plug: (0.125"-0.625") OD, 0.625" length *Small Pink Plug: (0.20"-0.050") OD, 0.625" length *Small Black Plug: (0.25"-0.125") OD, 0.75" length *Small Red Plug: (0.35"-0.1875") OD, 0.625" length *Small Yellow Plug: (0.3625"-0.25") OD, 0.75" length *Medium Clear Plug: (0.50"-0.35") OD, 0.80" length *Medium Light Green Plug: (0.625"-0.45") OD, 0.85" length *Medium Purple Plug: (0.585"-0.40") OD, 1" length *Medium Pink Plug: (0.65"-0.50") OD, 1" length *Medium Red Plug: (0.75"-0.625") OD, 1" length *Large Black Plug: (0.75"-0.58") OD, 1" length *Large Yellow Plug: (0.925"-0.70") OD, 1" length *Large Clear Plug: (1.00"-0.75") OD, 1" length *Large Light Green Plug: (1.05"-0.90") OD, 1" length *Large Dark Green Plug: (1.25"-1.00") OD, 1" length *Large Blue Plug: (1.425"-1.15") OD, 1" length *Large Clear Tube Plug: 0.450" OD, 0.325" ID, and 4.375" long. *Small Clear Tube Plug: 0.350" OD, 0.0225" ID, and 4.375" long. *Recommended temperatures up to 600°F (315°C) *Hollow to make it lighter and more conforming *Tapered to fit into a range of hole sizes *Great for CERAKOTE masking *Reusable