Keep a compatible Byrna launcher supplied with the correct power source using this package of ten 8-gram CO2 cylinders. Designed specifically for Byrna CL, SD, EP and HD launchers, these branded cylinders provide the proper size and configuration for models that use the company's 8-gram system. Byrna advises using its own 8-gram cylinders because this cartridge format is not standardized and other brands may not fit or puncture correctly. The package includes nine standard CO2 cylinders and one cylinder containing oil, allowing routine lubrication to be performed as part of the normal replacement cycle. The oiler cylinder helps simplify periodic launcher care without requiring a separate maintenance step each time a box is used. These compact, silver-finished cylinders are useful for maintaining a supply for practice, training and launcher readiness. Byrna recommends keeping an unpunctured cylinder installed when the launcher is being stored for readiness, since a pierced cylinder can gradually lose pressure over time. After a cylinder has been punctured, it should be monitored and replaced as appropriate rather than treated as a permanent gas supply. This 10-pack is intended only for launchers that accept Byrna 8-gram cylinders. It does not fit the Byrna LE, CL-XL, SDXL or HDXL, and it is not for launchers equipped with a Byrna Boost system; those configurations require a different CO2 size. Each cylinder is a single-use compressed-gas container and should be installed, removed, stored and disposed of according to the launcher instructions and warnings printed on the package. Do not refill, damage, burn or expose the cylinders to excessive heat. For owners of a compatible Byrna model, this factory accessory provides replacement propulsion cylinders and a convenient scheduled oiler in one clearly identified package.Specifications and Features: Ten 8-gram CO2 cylinders Includes one oiler cylinder for routine launcher maintenance Compatible with Byrna CL, SD, EP and HD launchers Not compatible with Byrna LE, CL-XL, SDXL, HDXL or Boost-equipped launchers Silver cylinder finish Single-use compressed-gas cylinders Brand: Byrna Product Type: CO2 Cylinders Manufacturer Part Number: CO2310 UPC: 810042110656