In the caskets they put thw owners valuables like jewels and sometimes their own pets if they were a pharoah they would put his wives or mistresses and food to "survive" in the afterlife
Only those caskets are air (and water) tight which are "sealer" caskets, meaning that they are provided with a rubber like sealing gasket between the lid and the base of the caskets. Usually only metal caskets can be sealer caskets.
Metal caskets are available in carbon steel, copper, bronze, and stainless steel. Carbon steel caskets are available in different gauges, ranging from 20 gauge (the thinnest) to 16 gauge (the thickest)
"Glass sealer" caskets (protective caskets with an inner glass lid) are an older type of "sealer caskets" (caskets providing an air and watertight seal). Later (for example in the Gulf War) the remains of soldiers were shipped back in glassless "gasket sealer" caskets.
One can find caskets for sale at mortuaries and funeral supply stores, for example Costco. Caskets are also for sale at Sears, Walmart, and Caskets By Design.
Only those caskets are air (and water) tight which are "sealer" caskets, meaning that they are provided with a rubber like sealing gasket between the lid and the base of the caskets. Usually only metal caskets can be sealer caskets.
There are several types of caskets available for purchase, including metal caskets, wood caskets, and eco-friendly caskets made from materials like bamboo or wicker. Each type of casket comes in various styles and designs to suit different preferences and budgets.
They made them to put their kings and queens in the afterlife.
Usually yes - as long as one compares caskets of similar design, similar thickness of wood and similar interiors.
Pyramids were meant to make you immortal in the afterlife, this is what happened to him. Edit; Pyramids were also made to help in the afterlife, so the egyptians put heaps of gold and stuff in there, so that he could be rich in the afterlife.
belongings thought to be of use in their afterlife
because they were thought to need it in the afterlife
The idea of the afterlife appealed to the ancient Egyptians because they thought that one day the people they put in the pyramids would rise for the dead and would go into the afterlife.