Pim weights (Hebrew פִּים‎ pîm) were polished weight-stones about 15 mm (5/8 inch) diameter, equal to about two-thirds of a Hebrew shekel. Many specimens have been found since their initial discovery early in the 20th century, weighing about 7.6 grams, compared to 11.5 grams of a shekel. These weights were equivalent to the weight of a pîm and was confirmed by the inscription across the top of their dome: the Paleo-Hebrew letters 𐤐𐤉‬‬𐤌‬ (pym).

Prior to the discovery of the weights by archaeologists, scholars did not know how to translate the word פִּים (pîm) in 1 Samuel 13:21. The 1611 translation of the King James Version of the Bible rendered the verse thus:

Robert Alexander Stewart Macalister's excavations at Gezer (1902-1905 and 1907-1909) were published in 1912 with an illustration showing one such weight, which Macalister compared to another published in 1907 by Charles Simon Clermont-Ganneau.

Based on this discovery, subsequent biblical translations were improved. The 1982 New King James Version rendered 1 Samuel 13:21: