Delica 4 with Emerson opening feature is a hook curving out the top of the knife's blade. When removing the knife from a front pocket it catches the pocket's edge quickly opening the knife blade ready to use. The knife can also be taken out of the pocket without engaging the opening feature by pulling it straight up and out with your fingers on top of the closed blade.
The gray fiberglass reinforced nylon handles are molded with Bi-Directional Texturing™ for traction and improved ergonomics. Inside the handle dual skeletonized stainless steel liners strengthen the knife without additional weight and create an anchor for external and internal components to attach through for more sturdiness and rigidity. Their VG-10 blades are flat saber-ground with a stronger tip and larger 13mm opening hole. Added to the blade's spine is slip resistant jimping. Phosphor bronze washers smooth out the open/close action and the clip is upgraded to a four-way tip-up, tip-down, left- or right-handed clip.
| Length Closed | 4.25 inches |
| Blade Length | 2.90 inches |
| Overall Length | 7.156 inches |
| Blade Material | VG-10 |
| Edge Type | Plain |
| Lock Type | Lock Back |
| Opening Type | Thumb Pull |
| Handle Material | Gray Fiberglass Reinforce Nylon - FRN |
| Pocket Clip | Ambi |
| Weight | 2.55 oz |
| Country of Origin | Japan |
| Model Number | C11PGYW |