Standard straight rules are ideal for use around the workplace or classroom and allow you to conduct accurate measurements between 15cm and 100cm and draw straight lines.

Foldable models do everything a straight ruler can do whilst also being able to fold to help save space. If you’re working on an important DIY project at home, such as hanging a shelf, rulers are a reliable addition to a toolbox too. However both materials have the disadvantage of being brittle and when bent or hit hard enough they will violently shatter, leaving razor sharp edges behind (the same was true of old Tic Tac boxes, which were also made of PS). You'll find all your computing needs including Laptops and Desktop Computers as well as Computer Monitors and Accessories. are designed for anyone suffering from Dyslexia or symptoms of visual stress, they combine page tinting with tracking support making it significantly easier to focus and read quickly and comfortably.I remember that those shatterproof rulers made a lovely 'twang' sound when you lay half of one on the desk and briefly pushed down on the other half.

Staples rulers are available in a range of materials as well, including plastic, metal and wood varieties to suit a wide range of work and home environments. This site is registered and owned by Staples inc in the USA and operated in the UK under license to Banner Group Limited. I had some cutlery that was gradually turning black because my old house was very close to the pumping station where chlorine was added to disinfect the well-pumped water supply for the estate.Our collection of rulers is made from durable and shatter-resistant material, making them a good long-term investment that will see you through a wide range of tasks.

Long lasting and with Oxford branding, this plastic, translucent ruler measures 30cm (12 inches), using both metric and imperial measurements. Plastic rulers were originally made from thermoplastics like Acrylic/Luvite/Perspex/Plexiglass (Polymethyl methacrylate, or PMMA) or Polystyrene (PS). Whether you’re working in an office, need one for your children’s school pencil case or just want one to have to hand at home, rulers are a true stationary staple. Our selection features a range of different rule styles including standard straight rules, foldable models, triangular rules and left handed rulers.It is a thermoplastic elastomer that is a copolymer of polystyrene (which gives it a hard surface and durability) and polybutadiene (which is a synthetic rubber that gives it flexibility, and which allows you to twang it off the edge of the desk). Our selection of triangular rulers are perfect for students, engineers and architects due to their precision and colour coded inserts. Just a few of the benefits of our rulers include ideal for use in offices, at home or in school and having clear metric and imperial measurements.

Our range of cleaning and hygiene supplies feature everything that is essential for catering and cleaning. The shatterproof ruler was developed exclusively to aid the launching of spitball projectiles in the modern classroom environment. If you want a bulletproof clear plastic the most obvious choice would be Lexan (Polycarbonate, or PC). Useful for a variety of tasks, from taking those all-important measurements to drawing a clean, straight line or plans or design projects, rulers are necessary for an array of tasks.However, salty or caustic solutions will eat away the oxide layer and cause the material to corrode. Take a strip of paper from your textbook, chew it in the mouth until it becomes a mulchy paste, then form it into a sphere using your fingers. The Chromium that alloyed in stainless steel forms an oxide layer on the surface (similar to the oxide layer that forms on aluminium) that protects the material from rusting or corroding. The transparent design ensures you'll always be able to see what you're doing, so taking exact measurements has never been easier. The shatterproof design helps prevent accidents and the bevelled edge allows for accurate, precision measuring.