They haven't got the mixed medium sill brush in stock either
I wanted to order some - out of stock
Email a 3-4 weeks later - back in stock
Ordered them that afternoon
Hour later i get an email - sorry we've just checked the new stock, they're faulty, it'll be another 6 ish weeks
Order cancelled
Ended up ordered the stiff sill brush, pleasantly surprised (although not ideal for leaded windows)