When you're ready to take the next step, the Merkur 37C razor Heavy Duty (HD) is waiting for you. This razor builds on the popularity of the 34C HD by adding a slanted bar to the head. This slant razor is for sheering lots of facial hair quickly and effortlessly. This is a more aggressive head but when used right it will be the "go to" when you have a few days of facial hair growth. The 37C comes apart just like the 34C, by unscrewing the bottom of the handle to release the head for quick blade loading.
If you like your 34C, then you'll love the 37C for a more aggressive shave. This razor works with all your DE blades and I recommend you try different brands of razors to find one that works best for you.