Table schema:
CREATE TABLE table_name_16 (supplier VARCHAR, keys__x_modes_ VARCHAR, basic_shape VARCHAR, wrist_pad VARCHAR)

Question: Which Supplier have a Basic shape of flat, a Wrist pad of no, and Keys (x modes) of 25+?
SQL: SELECT supplier FROM table_name_16 WHERE basic_shape = "flat" AND wrist_pad = "no" AND keys__x_modes_ = "25+"