top of page
Three Neck Round Bottom Badge Pin - Metallic Hard Enamel

One Three Neck Round Bottom Pin. Physical Chemistry Laboratory Series. Metallic pin that changes color from orange to purple when cooled to 0 degrees Celcius. 


Craft: Hard Enamel

Material: Zinc Alloy, Gold Plating

Dimension: 2.85 x 2.10 cm

Attachment: 2 Rubber Clutches


Thermochromic material degrades over time when exposed to light.

Three Neck Round Bottom Badge Pin - Metallic Hard Enamel

  • Three Neck Round Bottom Pin. Material is hard enamel on zinc alloy (gold plating) metal with two pink rubber pin backs. The material contains a thermochromic compound. 

  • Refund: All sales are final. No refund.

    Replacement: If your merchandise was damaged during shipment, please take pictures of the merchandise and send them to The damaged merchandise will be assessed by our team. If a replacement is granted by our team, customers will be responsible for shipping the damaged merchandise back to us before we ship replacements. Customers are responsible to pay for all shipments. 

bottom of page