3D colorful Richard silicone focus beads for pen making

Application in pen making scenarios:

Safety pen tip: Silicone focus beads are used as replaceable pen tips to prevent children from direct contact with high-temperature consumables, and comply with the EU EN71-3 toy safety standard.
Creative expansion: Supports DIY colored silicone pen tips to stimulate children's perception of shapes and colors.
Shock-absorbing design: Silicone focus beads are embedded in the metal pen barrel as a buffer layer to absorb writing pressure and reduce pen tip wear.