Features: Quality cotton, soft and skin friendly, comfortable and elastic, caring for the delicate skin of baby. 360 degree tightly wrapping, easy to disassemble, wash and install. 60 count combed cotton, soft and delicate to the touch, breathable and easy to clean, not prone to static electricity generation. Excellent dust-proof performances, environmentally friendly active printing and dyeing, high color fastness, and not easy to fade. It is a great choice for newborns and toddlers, and can use as a gift to them. Specifications: Fabric: Cotton Type: sun pattern, rainbow pattern, sun pattern with rainbow pattern(optional) Suitable for mattress size: oval and large rectangle shape 33x17x2inch, small rectangle 28x15x3inch, hourglass shape 30x18x2inch Package Includes: 1pc or 2pcs Baby Fitted Sheet(optional) note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.