Meet the Blood Type Chart Patch — a compact reference you’ll actually use when every second counts. This 3x3” patch with Velcro back helps you quickly understand which blood types are compatible with others, because your memory during emergencies tends to take a coffee break.

Whether you’re a caregiver, student, nurse, or on-the-go traveler, this patch stays visible and ready, keeping the critical info at your fingertips when you need it most.

Key Features & Design

• Size & Backing: 3x3” patch with Velcro on the back.
• Reference: Helps you understand which blood types are compatible with others.
• Emergency Ready: Designed for use during critical moments when you might not remember.
• Shipping: Free Shipping.