Original science and nature designs plus books by CRV Science founder Bryan P. White
Rigid 12–14 pt heavyweight board built for mailing or mini-framing
Smooth protective finish highlights fine biological linework
Clean, unlined uncoated matte back accepts ink without smudging
Ready for custom notes, field sketches, postage, or desk display
Anatomical study of Latrodectus (Black Widow Spider) and the evolutionary engineering of order Araneae.
Anatomical study of Latrodectus (Black Widow Spider) and the evolutionary engineering of order Araneae. Printed on thick 4″×6″ (300–350 g/m²) archival cardstock with a protective coated front for vivid detail and a completely blank uncoated reverse for effortless writing, sketching, or framing.
Crafted in 2–5 business days. Shipped tracked in eco-friendly packaging worldwide.
| Dimensions | 4″ × 6″ (10.2 × 15.2 cm) standard postcard format |
| Paper Weight | 12–14 pt (300–350 g/m²) heavyweight archival cardstock |
| Front Finish | Protective coated front for high-contrast color reproduction |
| Reverse Side | Blank uncoated matte writable reverse (no pre-printed lines) |
| Fulfillment | Custom printed on demand at the nearest Printful studio |
Every postcard is custom printed to order on heavyweight cardstock and shipped in rigid protective mailers.
| Production Time | 2–5 business days |
| US Standard Delivery | 3–6 business days ($4.99 or FREE over $50) |
| US Express Delivery | 2–3 business days ($9.99) |
| International Delivery | 5–14 business days |
Anatomical study of Latrodectus (Black Widow Spider) and the evolutionary engineering of order Araneae. Printed on thick 4″×6″ (300–350 g/m²) archival cardstock with a protective coated front for vivid detail and a completely blank uncoated reverse for effortless writing, sketching, or framing.
