Frac packer slips with carbide buttons. 
Easier to set, better holding, and longer lasting compared to steel toothed slips. 
Can last 100+ frac stages with minimal wear and can set in shale breaks with little to no slippage.
Eliminate downtime from tripping out to change worn slips in the middle of a frac job.
Drake's unique brazing process ensures proper binding of carbides to the slip bodies.
Slips come bolted to reins.