Item made specifically for use with another item, usually from the same manufacturer
. For example, shaving blades for a razor, parts for a machine
for a computer
or operating system. Pricing of captive product
is often based on a product-mix pricing strategy
where a low mark-up is set for the companion main product (such as a razor or operating system) with a high
mark-up for the supplies
(such as blades or application software).