Grips, the come in different sizes, hardness and colours. What else do you want me to tell you? They wear out quick but they don't cost you an arm and a leg. Grips with bar ends tend to last longer. Metal bar ends will hurt extra when the bars hit you in the head on a nasty crash. Use plastic ones. Some grips do come with plastic end-caps. This is a good choice. Do you like thick grips that give you some sort of "suspension" on rough landings, or do you want more control over your bars with skinny grips? Soft grips are nice on your hands but won't last as long as harder grips.
Those lock-on grips do work. No more slippage but they will hurt your wallet. Coalition grips (on the left) come with tie rips to fasten the grips the old school way. If you're into bright colours, Hoffman Bikes is your friend (pink grips shown). Wethepeople, Fit Bike Co., Terrible One, everyone makes grips. The choice is big, the choice is yours.
BdJ