Mr. Pen Triangle Ruler, Protractor, Math Set - 3 Pack, Square Ruler, Protractor for Geometry

This is the 2nd triangle set that I ordered for my son who is studying Mechanical engineering. The first set was too large for his project. I kept it for future use. This set was really nice. I really love the quality and value you get with Mr Pen. I will always buy from this company over any other. They always send a thank you card and the cutest little black mustache with your order. My son will love that touch. This little gesture will bring a bit of happiness for him during his stressful studies. It matters. Thank you to Mr Pen Company for you outstanding service and product. These measuring instruments are really nice and will help him greatly.

good buy

I bought this because I want to draw right angles on grid paper. Being an American, I thought 17x11 meant inches, non cm. If I had read the specs better, I would have seen they are not that big. My fault; I wanted something that cover an 8 1/2 by 11 inch paper. Because they were less than $5 I didn't do much research. I also wanted to be able to bump a ruler next to it to draw a line, but they are so thin that a good ruler with cork backing is too tall to do that. Again my fault, but if that is what you need, spend a few $$ more.

Very good quality at a low price. Nice/clear plastic, no distortion, well defined letters/numbers, and strong enough to take a little abuse. I.E. these items are NOT FRAGILE. I have a lot of time on my hands for the next several weeks, and I have a few 'Hen Scratchings' of metal structures that I can replicate, with this set, using straight lines, defined angles, and engineering graph paper (5 squares/inch). Yet another project/task to keep me busy. Good buy, especially for a new 'Drafting Student' or to just have in your desk drawer.

As a Junior High through college lover of Architecture, I used a T-Square, Protractors, and scaled rulers to draw homes. I designed room additions for two families after college while teaching Middle School. Missing the thrill with technology, I decided to go Ole school back to my roots at 68. So I ordered these and love the quality and attention to detail. I am using them to transfer my digital work to paper elevations.

As described, super fast shipping, nice note and sticker inside. Highly recommend!!!

These have been great for crafting and making 90 degree angles. I use it for building rc planes and making sure stabilizers and other parts are perfectly straight. They are pretty durable but I did sadly step on one and cause it to crack, but it still functions as meant to.

Very thin lightweight material expected a little heavier material

just like I remember form school. although not green. Seem robust enough to last years. Not too expensive so ignore cheaper.

Seems a bit pricey for just plastic items but oh well, it's all i needed anyway.

Absolute tat. Poor quality. A waste of money. Moral - you only get what you paid for.