This listing is for:

One (1) basic Urethane O-Ring seal kit, for the Crosman
model 400  CO2 guns.

Five (5) seals are included in this kit:

One (1) tube cap, urethane o-ring seal.
One (1) piercing body, (front) urethane o-ring seal.
One (1) exhaust valve, urethane o-ring seal.
One (1) bolt, urethane o-ring seal.
One (1) extra bolt, urethane o-ring seal.
One (1) exploded view with E-Z seal Id guide

Urethane offers superior strength, tear and abrasion resistance.

Important Information: Both .177 & .22 bolts (on the three guns
listed above) use the same size (Crosman #130-033) o-ring seals,
this is easy enough to verify by looking at the part numbers on
original EVPs, and by comparing the depth and width of the
0-ring grooves on original  bolts. 

Please contact me if you have any questions.

Thank you.