Hide the option button in Prodcuts

Hi, i am making a website with webshop, but without the cart and quantity buttons because the porducts only can be bought on request. 
But i want one of the products to be a 'from' price. The only way i could figure that out was to add an option (i added materials') and the two different prices. But when i do this, a button with the materials show up. I want to remove that button, but i don't know what its called, so I can not do mu code injection. 

Anyone that have knowledge with the button name of the option buttons?