Now get some of your favorite STEM pun designs as buttons or pins! These buttons are printed in vibrant colors with a durable steel pin back. The acrylic pins are also made with a durable steel back & a sturdy rubber clutch. Approximate sizes: Astrocyte - 1.5x1.5 Never Trust - 1.5x1.5 Heterozygote - 1.2x1.5 SHIPPING: Domestic Orders: Standard shipping is $1.50 & includes First-Class shipping (2-6 business days). Shipping upgrades are available at checkout. Orders above $60 get a free Priority mail upgrade. International Orders: Standard international shipping costs $15 & takes approximately 7-21 days to arrive. Shipping upgrades are available at checkout. 2021 Art by Rachel stem Buttons + Pins | Science, Chemistry, Medicine, Neuroscience Science