Was recommended these by our daycare to help our son with learning how to hold a pencil. They really have helped in crossing that gap with his grip. They fit very tight onto a pencil, so a little stiff to put on or remove, but are solid and quality product that feel nice when holding. Would recommend to anyone who needs a grip to help their little ones handwriting skills.
These pencil grips are a bit hard to get on my Polychromos pencils, tight fit and the silicone grips onto the shiny smooth texture of my pencils so I struggled a bit but once it was on it felt nice in the hand and did it's job.