Bore-tips are foam swabs designed for bore cleaning. It comes in various calibers from .22 to 12 ga. Maker SWAB-ITS market this as improved alternative over traditional patches or jags.
The package comes with swabs you can detach individually and use with cleaning rod. Once you screw the swab in to the rod, you can apply cleaning solution and run it through barrel of the gun. The shape allows more uniform application inside a barrel compared to traditional method.
This swab can be used for applying lubricants to other parts as well. lubricating barrel, rails and other places can be done.
Each swab can be reused many times, so for users who clean multiple firearms this would be something to consider. Price for .357/9mm was around $5 and comes with 6 swabs.