 Olmec colossal heads vary in height from 1 @.@ 47 to 3 @.@ 4 metres ( 4 @.@ 8 to 11 @.@ 2 ft ) and weigh between 6 and 50 tons . All of the Olmec colossal heads depict mature men with flat noses and fleshy cheeks ; the eyes tend to be slightly crossed . The general physical characteristics of the heads are of a type that is still common among people in the Olmec region in modern times . The backs of the heads are often flat , as if the monuments were originally placed against a wall . All examples of Olmec colossal heads wear distinctive headdresses that probably represent cloth or animal hide originals . Some examples have a tied knot at the back of the head , and some are decorated with feathers . A head from La Venta is decorated with the head of a bird . There are similarities between the headdresses on some of the heads that has led to speculation that specific headdresses may represent different dynasties , or perhaps identify specific rulers . Most of the heads wear large earspools inserted into the ear lobes . 
 Olmec colossal heads vary in height from 1 @.@ 47 to 3 @.@ 4 metres ( 4 @.@ 8 to 11 @.@ 2 ft ) and weigh between 6 and 50 tons . All of the Olmec colossal heads depict mature men with flat noses and fleshy cheeks ; the eyes tend to be slightly crossed . The general physical characteristics of the heads are of a type <a href='null_relcl' title='1'><mark>that</mark></a><a href='drop_aux' title='2'><mark>is</mark></a>still common among people in the Olmec region in modern times . The backs of the heads <a href='drop_aux' title='3'><mark>are</mark></a>often flat , as if the monuments <a href='uninflect' title='4'><mark>were</mark></a> originally placed against a wall . All examples of Olmec colossal heads wear distinctive headdresses <a href='null_relcl' title='5'><mark>that</mark></a>probably represent cloth or animal hide originals . Some examples <a href='got' title='6'><mark>have</mark></a> a tied knot at the back of the head , and some are decorated with feathers . A head from La Venta is decorated with the head of a bird . <a href='dey_it' title='7'><mark>There</mark></a> are similarities between the headdresses on some of the heads <a href='null_relcl' title='8'><mark>that</mark></a><a href='been_done' title='9'><mark>has</mark></a> led to speculation that specific headdresses may represent different dynasties , or perhaps identify specific rulers . Most of the heads wear large earspools inserted into the ear lobes . 
Olmec colossal heads vary in height from 1 @.@ 47 to 3 @.@ 4 metres ( 4 @.@ 8 to 11 @.@ 2 ft ) and weigh between 6 and 50 tons . All of the Olmec colossal heads depict mature men wid flat noses and fleshy cheeks ; da eyes tend to be slightly crossed . The general physical characteristics of tdaheads are of a type still common among people in the Olmec region in modern times . Thdaacks of the heads often flat , as if the monuments was originally placed against a wall . alll examples of Olmec colossal heads wear distinctive headdresses probably represent cloth or animal hide originals . Some examples got a tied knot at the back of the head , and some are decorated with feathers . A head from La Venta is decorated with the head of a bird . It is similarities between thedaaddresses on sum of the heads done led to speculation that specific headdresses may represent different dynasties , or perhaps identify specific rulers . Most of the heads wear large earspools inserted into the da lobes .