Rectangular tray for packing and conveying spheroidal fruit

A rectangular tray formed of a thin-walled material of essentially uniform thickness for packing and conveying generally spheroidal objects, comprising, depressions for accommodating one object each, and stiffening channels recessed into one major surface of the tray and projecting from the other major surface of the tray, the depressions being concave when viewed from the top of the tray and convex from the bottom of the tray, and being arranged in straight rows which are parallel to one peripheral edge of the tray with the depressions in each row being staggered relative to the depressions in adjacent rows, and wherein in at least some of the rows of depressions the majority of depressions are connected to adjacent depressions by said stiffening channels which are disposed at an oblique angle to the direction of that row, whereby buckling of the tray is resisted along lines parallel to the peripheral edges of the tray.