Tokyo-based glassware manufacturer Hario (which means “the king of glass”) today unveiled a newly developed set of glass speakers that costs 16 million yen (US$168,000).

The so-called Harion speakers are made of heat-resistant material and took three years and eight months to design and produce. It took 23 subcontractors to create the hand-made set. The company claims it’s the first resistant-glass model of its kind.

The set consists of two middle range speakers, one woofer, one center speaker and two tweeters. Hario also created a fully-functional violion made of glass. The violin, which is as Japan-only as the speakers, is priced at $3,500.