Swingline Stratus Acrylic Pen Cup, 4.25 x 2.75 x 4.5 Inches, Clear (S7010137) Keep writing utensils neatly stored in one convenient spot with this pen cup Made from durable acrylic material. Solid base ensures the pen cup stays firmly in place. Semi-circle design is compact yet spacious Perfectly clear with a modern, rounded, shape this desk accessory has an upscale appearance Premium design is heavyweight for better stability; 4.25 x 2.75 x 4.5 inches overall size