Timesulin, Solostar Cap For Pen, 1 UnitProduct Description The Solostar Cap for Pen by Timesulin is designed for use with insulin pens, providing a convenient and effective solution for managing diabetes. This cap helps to protect your insulin pen from damage and contamination. Its innovative design ensures that the pen remains secure while being easy to apply and remove, making it a practical accessory for daily diabetes care. Product Benefits Protection For Insulin Pen. Easy To Use.