The Card of Formulae

A black-plated stainless steel card engraved with 125 mathematical and physical formulae and 15 constants

The front side is engraved with 57 mathematical formulae and 6 mathematical constants, including the basic ones such as formulae for areas, perimeters and triangles, trigonometry, quadratic formula, volumes and surface areas, as well as some more advanced ones like normal distribution, trigonometric identities, binomial expansion

The back side is engraved with 68 formulae and 9 constants in Physics, such as those related to motions, forces, energy, waves, fluids, electricity, magnetism and special relativity

Made of highly durable and corrosion resistant SUS304 stainless steel

With ultra-luxurious feel given by the metallic lustre of the black stainless steel card

Laser-engraved words, symbols and numbers will never fade nor wear off

With a special dirt-repellent and anti-fingerprint coating applied

Thickness is enhanced to 0.6 mm to ensure the card is highly rigid and durable

Same size as a credit card (85.5 mm x 54 mm)

All images are for reference only. The photos may be slightly different from the actual item in terms of colour due to the lighting during photo shooting or the monitor's display.

The card sleeve shown in the product images is not included. It can be purchased here: https://www.minuteobjects.com/product-page/single-slot-card-sleeve

Dimensions: 85.5 mm x 54 mm (with rounded corners)

Thickness: 0.6 mm ± 0.03 mm

Material: SUS304 stainless steel

Colour: black

Coating: dirt-repellent and anti-fingerprint coating

Colour of the engraved information: silvery

Place of origin: Taiwan