This kit includes (8) Kinsler Flowed Injector Pills (of your choice) and a handy plastic carrying case with a see-through lid which holds up to 16 restrictor pills. Kinsler pills are offered in great variety for more precise fuel flow control in your fuel injection system.
Sizes are available from .050 to .110. (Pill size is listed at the end of a part number: 4733715-050 means pill size 050.)