Indigo Instruments offers superior products, low prices and fast delivery with support by knowledgeable science trained staff. Canadian orders ship from Waterloo, ON & US orders from Buffalo (Niagara Falls), NY. Our best known product is the DNA model on the Big Bang Theory. We have also have one of the broadest ranges of test strips including pH litmus paper, sanitizers for restaurants & health care, water leak detection, ammonia, supertasting and more. Our neodymium magnets are N42 grade with full documentation available.